TriOmegaZero wrote:
As long as he's not carrying anything to slow him down, he's allowed to run by the rules
i'd say barely:
You can run for a number of rounds equal to your Constitution score, but after that you must make a DC 10 Constitution check to continue running. You must check again each round in which you continue to run, and the DC of this check increases by 1 for each check you have made. When you fail this check, you must stop running.
So he can run for three seconds before, in all likelihood, not running anymore.
edit: 18 second